search

DSheirer / sdrtrunk

A cross-platform java application for decoding, monitoring, recording and streaming trunked mobile and related radio protocols using Software Defined Radios (SDR). Website:
GNU General Public License v3.0
1.57k stars 255 forks source link

DMR recordings are being split into multiple files. #1013

Open LordDonkey opened 3 years ago

LordDonkey commented 3 years ago

I'm noticing that audio recordings are sometimes are being split into multiple files on DMR.

Linked below are 2 instances where this has occurred. The recordings were imported into Trunking Recorder. Don't think it's a Trunking Recorder issue.

https://drive.google.com/drive/folders/1CQAwMjTdjdLQKZuXRIgYRa674fwSpl7J?usp=sharing

GTR8000 commented 3 years ago

I reported this to Denny via email on October 31st. Confirmed issue with alpha-6 DMR audio. For future reference, you can rule out an issue with Trunking Recorder by shutting that software down, then checking SDRTrunk's recordings folder.

Text of my email report:

I'm seeing some weird behavior with Con+ voice decoding. I've got a pretty strong signal from a local site, and yet single transmissions are getting chopped up into multiple clips. So a 7 second transmission from the same radio may wind up as three clips of 2, 4, 1 seconds. It almost seems as if there is some sort of squelch threshold that is causing the signal to fade and reacquire in the middle of the transmission, best way I can describe the behavior.